No 150 vtec's on a cat.
I have another query, When i study the Grady/Yamaha performance bulletin , in which they use 19" SWS 3 blades they acheive 6,000rpm and 50.5 mph with an optimal cruise at 3,500 of 2.13 mpg and 28 mph.
This seems optimistic at best. Has anyone acheived these figures?